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There are six relational operators in Python -
• <(less than operator)
• >(greater than operator)
• <=(less than equals to operator)
• >=(greater than equals to operator)
• ==(equals to operator)
• !=(not equals to operator)

< (less than operator)


This operator is also known as less than operator. - It compares the values of two operands around it. < operator returns a boolean value true when operand on its left is less than the operand on its right, otherwise it returns false.






A coding example with < operator




# Python < operator example


if 5 < 10:		#comparing an integer to another integer
    print("5 is less than 10")

if 'a' < 'b':		#comparing a string with another string(in Python even a single character is termed as a string)
    print("a is less than b")


if 100.5 < 100.4 :	#comparing a floating value with another floating value
    print("100.5 is less than 100.4")

if 100 < 100.001 :	#comparing an integer with a floating value
    print("100 is less than 100.001")





Output is




5 is less than 10
a is less than b
100 is less than 100.001








> (greater than operator)


This operator is also known as greater than operator. - It compares the values of two operands around it. > operator returns a boolean value true when operand on its left is greater than the operand on its right, otherwise it returns false.






A coding example with > operator




# Python > operator example


if 10 > 10 :		#comparing an integer with an integer
    print("10 is greater than 10")


if 'b' > 'a' :		#comparing a string with a string(in Python even a single character is treated as a string)
    print("b is greater than a")


if 100.5 > 100.4999 :	#comparing a floating value with another floating value
    print("100.5 is greater than 100.4999")


if 100 > 100.001 :	#comparing an int with a floating value
    print("100 is greater than 100.001")





Output is




b is greater than a
100.5 is greater than 100.4999






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<= (less than equals to operator)



This operator is also known as less than equal to operator. It compares the values of two operands around it and it returns a boolean value, true, if either of these conditions is true -
• If the operand of the left of <= operator is smaller than operand on the right of <=, or,
• If the operand on the left of <= is equal to the operand on its right.
if neither of the above conditions is met then this operator returns false.






A coding example with <= operator




# Python <= operator example


if 'a' <= 'b' :		#comparing a string with another string(in Python even a single character is termed as a string)
    print("a is less than or equal to b")


if 'z' <= 'z' :		#comparing a string with another string(in Python even a single character is termed as a string)
    print("z is less than equal to z")


if 30.5 <= 31 :		#comparing an floating value value with integer
    print("30.5 is less than or equal to 31")


if 20.5 <= 20.6 :	#comparing an floating value value with integer
    print("20.5 is less than or equal to 20.6")


if 10.5 <= 10.5 :	#comparong a floating value with a floating value
    print("10.5 is less than or equal to 10.5")


if 5 <= 5 :		#comparing an integer to an integer
    print("5 is less than or equal to 5")

 
if 6 <= 6.0 :		#comparing an integer with a floating value
    print("6 is less than or equal to 5")

if 10 <= 6 :		#comparing an integer with a floating value
    print("10 is less than or equal to 6")





Output is




a is less than or equal to b
z is less than equal to z
30.5 is less than or equal to 31
20.5 is less than or equal to 20.6
10.5 is greater or equal to 10.5
5 is less than or equal to 5
6 is less than or equal to 5

Note: There should never be any space between < and = of <= operator, or a compile error is thrown.







>= (greater than equals to operator)



This operator is also known an greater than equal to operator. It compares the values of two operands around it and it returns a boolean value, true, if either of these conditions is true -
• If the operand of the left of >= operator is greater than operand on the right of >=, or,
• If the operand on the left of >= is equal to the operand on its right.
if neither of the above conditions is met then this operator returns false.







A coding example with >= operator




# Python >= operator example


if 'z' >= 'b' :  	#comparing a string with another string(in Python even a single character is termed as a string)
    print("z is greater than or equal to b")



if 'z' >= 'z' :		#comparing a string with another string(in Python even a single character is termed as a string)
    print("z is greater than equal to z")



if 50.5 >=50 :		#comparing an floating value with integer
    print("50.5 is greater than or equal to 50")



if 19.7 >=21.7 :	#comparing a floating value with a floating value
    print("19.7 is greater than or equal to 21.7")



if 10.5 >= 10.5 :	#comparing a floating value with a floating value
    print("10.5 is greater or equal to 10.5")



if 5 >= 5.0 :		#comparing an integer to integer
    print("5 is greater than or equal to 5.0")



if 6 >= 10 :		#comparing a integer with a floating value
    print("6 is greater than or equal to 10")





Output is




z is greater than or equal to b
z is greater than equal to z
50.5 is less than or equal to 50
10.5 is greater or equal to 10.5
5 is greater than or equal to 5.0

Note: There should never be any space between > and = of >= operator, or a compile error is thrown.







== (equals to operator)


This operator is called equals to operator. It compares the values of two operands by checking for their equality. It returns a boolean value true when operands have equal values otherwise it returns false.






A coding example with == operator




# Python == operator example


if 'z' == 'z' : 	#comparing a character to another character
    print("z is equal to z")


if 50.5 == 50.5 :   	#comparing an floating value to another floating value
    print("50.5 is equal to 50.5")


if 100 == 100.001 :	#comparing an integer with a floating value
    print("100 is equal to 100.001")


if 99.9999 == 99.999 :	#comparing a floating value with a floating value
    print("99.9999 is  equal to 99.999")


if 5 == 5.0 :		#comparing an integer to floating value
    print("5 is equal to 5.0")


if 10 == 10 :		#comparing an integer to integer
    print("10 is equal to 10")


if 97 == "ab" :		# A string in python can be compared to another value only using == operator.
    print("97 is equal to a")





Output -




z is equal to z
50.5 is equal to 50.5
5 is equal to 5.0
10 is equal to 10

Note: There should never be any space between = and = of == operator, or a compile error is thrown.







!= (not equals to operator)

This operator is also known as not equal to operator. It compares the values of its two operands by checking for their inequality. It returns a boolean value true when operands have unequal values otherwise it returns false.

A coding example with != operator

# Python != operator example

if 'z' != 'a' : 		#comparing a character to another character
    print("z is not equal to a")


if 100 != 100.001 :		#comparing an integer with a floating value
    print("100 is not equal to 100.001")


if 99.9999 != 99.999 :		#comparing a floating value with a floating value
    print("99.9999 is  not equal to 99.999")


if 5.00 != 5.0 :		#comparing an integer to floating value
    print("5.00 is not equal to 5.0")

	
if 11 !=10 :			#comparing an integer to an integer
    print("11 is not equal to 10")

	
if 98 != 'hello' :		# A string in python can be compared to another value only using == operator.
    print("98 is not equal to a")

Output -

z is not equal to a
100 is not equal to 100.001
99.9999 is  not equal to 99.999
11 is not equal to 10
98 is not equal to a

Note : There should never be any space between ! and = of != operator, or a compile error is thrown.

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